Chrysanthemum plant named ‘G19ADU09MA’

ABSTRACT

A new and distinct cultivar of Chrysanthemum plant named ‘G19ADU09MA’, characterized by its upright, outwardly spreading and uniformly rounded plant habit; moderately vigorous growth habit; freely branching habit; dense and full plant habit; dark green-colored leaves; uniform and freely flowering habit; long flowering period; and decorative-type inflorescences with ray florets that are dark red purple in color.

Botanical designation: Chrysanthemum X morifolium.

Cultivar denomination: ‘G19ADU09MA’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Chrysanthemum Plant Named ‘Aduro Bronze’

Applicant: Ellen Sofie Pieters

Filed: Jan. 13, 2018 Ser. No. 15/732,915

Title: Chrysanthemum Plant Named ‘GED19ADU7P’

Applicant: Ellen Sofie Pieters

Filed: Jan. 13, 2018 Ser. No. 15/732,905

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofChrysanthemum plant, botanically known as Chrysanthemum X morifolium andhereinafter referred to by the name ‘G19ADU09MA’.

The new Chrysanthemum plant is a product of a planned breeding programconducted by the Inventor in Oostnieuwkerke, Belgium. The objective ofthe breeding program is to create new uniformly mounding and freelyflowering Chrysanthemum plants with unique and attractive ray floretcoloration.

The new Chrysanthemum plant is a naturally-occurring whole plantmutation of Chrysanthemum X morifolium ‘Aduro Violet’, not patented. Thenew Chrysanthemum plant was discovered and selected by the Inventor as asingle plant from within a population of plants of ‘Aduro Violet’ in acontrolled greenhouse environment in Oostnieuwkerke, Belgium in October,2015.

Asexual reproduction of the new Chrysanthemum plant by vegetativeterminal cuttings was first conducted in a controlled greenhouseenvironment in Oostnieuwkerke, Belgium in January, 2016. Asexualreproduction by vegetative terminal cuttings has shown that the uniquefeatures of this new Chrysanthemum plant are stable and reproduced trueto type in successive generations.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘G19ADU09MA’. These characteristics incombination distinguish ‘G19ADU09MA’ as a new and distinct Chrysanthemumplant:

-   -   1. Upright, outwardly spreading and uniformly rounded plant        habit; moderately vigorous growth habit.    -   2. Freely branching habit; dense and full plant habit.    -   3. Dark green-colored leaves.    -   4. Uniform and freely flowering habit.    -   5. Long flowering period.    -   6. Decorative-type inflorescences with ray florets dark red        purple in color.

Plants of the new Chrysanthemum can be compared to plants of themutation parent, ‘Aduro Violet’. Plants of the new Chrysanthemum differprimarily from plants of ‘Aduro Violet’ in the followingcharacteristics:

-   -   1. Plants of the new Chrysanthemum are more uniform than plants        of ‘Aduro Violet’.    -   2. Ray florets of plants of the new Chrysanthemum are dark red        purple in color whereas ray florets of plants of ‘Aduro Violet’        are pink and violet in color.

Plants of the new Chrysanthemum can be compared to plants of theChrysanthemum X morifolium ‘Aduro Bronze’, disclosed in U.S. Plantpatent application Ser. No. 15/732,915. In side-by-side comparisons,plants of the new Chrysanthemum differ primarily from plants of ‘AduroBronze’ in ray floret color as ray florets of plants of the newChrysanthemum are dark red purple in color whereas ray florets of plantsof ‘Aduro Bronze’ are initially red purple in color becoming greyedorange in color with subsequent development giving the inflorescences abi-colored appearance

Plants of the new Chrysanthemum can be compared to plants of theChrysanthemum X morifolium ‘GED18ADU7P’, disclosed in U.S. Plant patentapplication Ser. No. 15/732,905. In side-by-side comparisons, plants ofthe new Chrysanthemum differ primarily from plants of ‘GED18ADU7P’ inray floret color as ray florets of plants of the new Chrysanthemum aredark red purple in color whereas ray florets of plants of ‘GED18ADU7P’are initially red purple in color becoming light purple and lighter redin color with subsequent development giving the inflorescences abi-colored appearance.

Plants of the new Chrysanthemum can also be compared to plants ofChrysanthemum X morifolium ‘Mefisto Purple’, disclosed in U.S. PlantPat. No. 21,896. In side-by-side comparisons, plants of the newChrysanthemum differ primarily from plants of ‘Mefisto Purple’ in thefollowing characteristics:

-   -   1. Plants of the new Chrysanthemum flower one to two weeks        earlier than plants of ‘Mefisto Purple’.    -   2. Ray florets of plants of the new Chrysanthemum are darker red        purple in color than ray florets of plants of ‘Mefisto Purple’.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph illustrates the overall appearance of thenew Chrysanthemum plant showing the colors as true as it is reasonablypossible to obtain in colored reproductions of this type. The photographcomprises a side perspective view of a typical flowering plant of‘G19ADU09MA’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations andmeasurements describe plants grown in 19-cm containers in an outdoornursery in Oostnieuwkerke, Belgium during the summer and autumn andunder cultural practices generally used in commercial Chrysanthemumproduction. During the production of the plants, day temperatures rangedfrom 20° C. to 25° C. and night temperatures ranged from 12° C. to 18°C. Plants were 20 weeks old when the photograph and detailed descriptionwere taken. In the following description, color references are made toThe Royal Horticultural Society Colour Chart, 2005 Edition, except wheregeneral terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum X morifolium ‘G19ADU09MA’.-   Parentage: Naturally-occurring whole plant mutation of Chrysanthemum    X morifolium ‘Aduro Violet’, not patented.-   Propagation:    -   -   Type cutting.—By vegetative tip cuttings.        -   Time to initiate roots, summer.—About two weeks at            temperatures about 20° C.        -   Time to initiate roots, winter.—About 20 days at            temperatures about 20° C.        -   Time to produce a rooted young plant, summer.—About 30 days            at temperatures about 20° C.        -   Time to produce a rooted young plant, winter.—About 40 days            at temperatures about 20° C.        -   Root description.—Fine, fibrous; typically light brown in            color, actual color of the roots is dependent on substrate            composition, water quality, fertilizer type and formulation,            substrate temperature and physiological age of roots.        -   Rooting habit.—Freely branching; medium density.-   Plant description:    -   -   Appearance.—Perennial decorative-type Chrysanthemum; stems            upright and outwardly spreading giving a uniformly rounded            appearance to the plant; plants roughly, spherical; very            freely branching habit, about 20 primary lateral branches            develop, each primary lateral branch with multiple secondary            branches; pinching enhances lateral branch development;            dense and full plant habit; moderately vigorous growth            habit; plants flexible, not brittle.        -   Plant height.—About 50 cm.        -   Plant width.—About 55 cm to 65 cm.        -   Lateral branches.—Length: About 20 cm to 22 cm. Diameter:            About 2 mm to 3 mm. Internode length: About 2.5 cm to 3 cm.            Strength: Moderately strong, flexible. Texture: Pubescent,            fine; longitudinally ridged. Color: Close to 145A.        -   Leaves.—Arrangement: Alternate, simple. Length: About 4 cm            to 5 cm. Width: About 3 cm to 3.5 cm. Apex: Rounded to            cuspidate. Base: Attenuate. Margin: Palmately lobed and            serrate, sinuses between lateral lobes divergent to            parallel. Texture, upper and lower surfaces: Slightly            pubescent. Venation: Palmately reticulate. Color: Developing            leaves, upper surface: Close to 145A. Developing leaves,            lower surface: Close to 145B. Fully expanded leaves, upper            surface: Close to 139C; venation, close to 148C. Fully            expanded leaves, lower surface: Close to 145B; venation,            close to 147B to 147C. Petioles: Length: About 1 cm.            Diameter: About 2 mm. Texture, upper and lower surfaces:            Slightly pubescent; slightly rough. Color, upper surface:            Close to 139C. Color, lower surface: Close to 145B.            Stipules: Length: About 1 cm. Diameter: About 2 mm. Texture,            upper and lower surfaces: Slightly pubescent; rough. Color,            upper and lower surfaces: Close to 137A.-   Inflorescence description:    -   -   Appearance.—Decorative-type inflorescence form;            inflorescences borne on terminals above foliar plane; disc            and ray florets arranged acropetally on a capitulum.        -   Fragrance.—Slightly fragrant, pungent.        -   Flowering response.—Under natural season conditions, plants            flower in early October in Belgium; flowering response time,            about 42 days.        -   Postproduction longevity.—Inflorescences maintain good color            and substance for about 49 days in an outdoor nursery;            inflorescences persistent.        -   Quantity of inflorescences.—About 20 inflorescences develop            per lateral branch.        -   Inflorescence buds.—Height: About 5 mm. Diameter: About            8 mm. Shape: Globular. Color: Close to 187A.        -   Inflorescence diameter.—About 5 cm.        -   Inflorescence depth (height).—About 3 cm.        -   Disc diameter.—About 5 mm; inconspicuous.        -   Receptacle diameter.—About 3 mm.        -   Receptacle height.—About 2.5 mm to 3 mm.        -   Receptacle color.—Close to 144B.        -   Ray florets.—Length: About 2.5 cm to 3 cm. Width: About            4 mm. Shape: Oval. Apex: Rounded. Base: Attenuate. Margin:            Entire. Aspect: Mostly flat. Texture and luster, upper and            lower surfaces: Smooth, glabrous; matte. Number of ray            florets per inflorescence: About 125 to 150 arranged in            about eight whorls. Color: When opening, upper surface:            Close to 59A. When opening, lower surface: Close to 59B.            Fully opened, upper surface: Close to 59A; towards the apex,            close to 59B; color does not change with development. Fully            opened, lower surface: Close to 59B; color does not change            with development.        -   Disc florets.—Length: About 3 mm. Diameter: About 0.5 mm to            1 mm. Shape: Tubular; apices acute. Number of disc florets            per inflorescence: About 50 massed at the center of the            inflorescence. Texture and luster: Smooth, glabrous; glossy.            Color, immature: Close to 145A. Color, mature: Close to 12A.        -   Phyllaries.—Number of phyllaries per inflorescence: About 25            arranged in two or three whorls. Length: About 4 mm to 6 mm.            Width: About 2 mm to 3 mm. Shape: Ovate. Apex: Rounded.            Base: Rounded to truncate. Margin: Entire. Texture, upper            and lower surfaces: Smooth, glabrous. Color, upper surface:            Close to 137A. Color, lower surface: Close to N137B.        -   Peduncles.—Length, terminal peduncle: About 3 cm. Length,            fourth peduncle: About 4 cm. Length, seventh peduncle: About            5 cm. Diameter: About 4 mm. Angle: About 30° from vertical.            Strength: Moderately strong. Texture: Slightly pubescent.            Color: Close to 145A.        -   Reproductive organs.—Androecium: Not observed. Gynoecium:            Not observed.        -   Seeds and fruits.—To date seed and fruit production have not            been observed on plants of the new Chrysanthemum.-   Garden performance: Plants of the new Chrysanthemum have    demonstrated excellent garden performance and will tolerate    temperatures ranging from about 0° C. to about 45° C.

It is claimed:
 1. A new and distinct Chrysanthemum plant named‘G19ADU09MA’ as illustrated and described.